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Published byAudra Garrett Modified over 8 years ago
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Warm Up Which pair(s) of triangles has enough information given to prove that the triangles are congruent? For any that have enough information, tell what triangle congruence postulate applies.
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Announcements Quiz on Thursday Online Quiz assignments due on Wednesday (4-2, 4-3, and 4-4)
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Two Column Proof What are the important elements of a two-column proof?
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Paragraph Proofs
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Flow Chart Proof
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Proof Puzzle #1 First, separate statements and reasons. Determine which statements are given. Build the proof. Copy the proof onto the large whiteboards.
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Proof Puzzle #1 Debrief How accurate is the diagram? Are the segments and angles that look congruent in the diagram actually congruent? Are the corresponding parts labeled in the correct order? Did any of the groups put markings in the diagram? If there are different correct ways to order the statements in the proof, what are they? Which statements must come ahead of other statements? Why? For which statements or reasons can you predict the ordering? How does this predictable order help you write a proof?
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More Proof Puzzles Complete the proof puzzles in your group. Copy the proofs into your notebook.
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